Starting apparatus for internal-combustion engines



P. Pl DU'NIANOIS.

STARTING APPARATUS PoR INTERNAL CoNIBuSTIoN ENGINES.

AFPLICATIN FILED SEPT. 22,1919. I

$25,950. Patented Aug. 15, 1R22.

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EMILE RAL nmvIANos,'or rinvenute-PERRET, FRANCE'. l l l l To all whom t may concern:

VBe it known that l, EMILE Nuis, Seine, France, citizen of the Republic of France, residing at 7l Rue Danton, Levallois-Perret, Seine', France, have invented ertain new and useful Improvements in Starting` Apparatus for lnternalombustion Engines, of which the following` is a specication.

According` to this invention, compressed andcarburetted air, that `is to say, com-- pressed air mixed with a proper proportion .of petrol vapor or other suitable fuel for interna-l combustion engines, isstored i'n a container, the storing being effected lat .any convenient time, but preferably shortly before starting the motor, and the mixture is admitted at the proper" moment-toA thecylinders of the motor to start the saine. This maybe effected from a distance, if required.

The accompanying drawing, showing an embodiment of the invention, is a sectional view of the apparatus.

The apparatus comprises four .main part-s a hand pump designated a, a' carburetter o, a compressed air container, designated c, and a fuel container d.

It will be understood that these four parts are not necessarily disposed in the relative positions in which they' are shown in the drawing: they may be arranged in any other way so as to occupy the least space or to be best adapted to the requirements of the installation. As shown in the drawing, the partsv are assembled by means of a bracket c, whereby the apparatus can be fixed in a suitable place by means of screws f.

The fuel container l has an inlet valve g for filling it, and at the bottom a valve 7L connected to a pipe z' leading to the lower part of the carburetter o.

The carburetter comprises a closed chamber having an over-flow orifice ,7' about midway of its height, and several air-holes 7c at the upper part. A tube Z depends into the chamber and communicates by means of a passage m with a horizontal tube a. The latter communicatesl at one end with the interior of the chamber, and at its other end with'a passage leading to a valve o. A regulating screw .o enables the orifice of tube n in the chamber to be more or less throttled.

The air pump comprises a barrel with an p 'spe'iiicatioii of Leiters' Patent.

PAUL DUMA' 7l Rue Danton, Levallois-Perret, I

which are uncovered by the plunger 'at the STARTING APPARATUS' non,rNfrnneyaL-ooi/inusrroN ENGINES.' y l i y air-tight plunger -p-therein, connected lby a` .der suction, a mixture of atom-ized*fuel` and air, and the valve'tis connected, for. delivery,\ a plpea. to the alr'container-o.

`The air container o h as at its upperpart a Ahand `valveio@ opening inwards,1all"o"wing Patented Augjl, 1922. i l `Application iiiedsepieiribei 22, i919. serial No. 325,586. i

the *contents` of the-.contai`ner cito flow ycontainer` has been: filled ywith fuel, the valve `itisopened, so :thatfuel flows to the' carburetter chamber, which it lills to the level of the orifice j. At the moment when liquid is seen to flow outv thekvalveh` is closed.

By lifting ih@ hallal@ 8 the/plunger i? y jindicates ,the pressure in is lifted, and produces underneath it a vac i uum, so that the valveo opens. Airentering 'thegchamber through the holes la passes into the tube n through the passage left free by the regulating screw o', thisv passage being so regulated that in the tube a the 'pressure is much below atmospheric i 4pressure during the whole of the upward stroke of the plunger'.v Fuel is thus sucked p through the tube Z and passage m, and as the latter and the tube n are perpendicular to each other, the currents of air and fuel cross each other-and the fuel is atomized.

During the whole of the ascent of the plunger p the pump a is being charged with a mixture of air and atomized fuel, but at a pressure below atmospheric pressure. At the end of the upstroke of the plunger the holes g are uncovered and airfrom outside immediately enters, re-e'stablishing atmospheric'pressure. This additionalfair gives the Vcarburetted mixture its most efiicient composition and assists complete vaporization of the fuelp. The plunger then descends, and during its descent the valve ois closed by its spring. Thev carburetted air iscompressed, the valve opens, and the compressed air is forced through the pipe u into the container c.

A few strokes of the plunger produces inI iio - I claim as new and desire to secure by Letters Patent is:

l. A starting` apparatus for internal combustion engines, comprising,` a fuel tank, ar

carburetter independent from the earburetter of the engine and in Communication with said fuel tank, a pump drawing out of said earbureter a 'mixture of air and atomized fuel and Istoring and compressing said explosive mixture into a container and means for connecting said Container to the explosion cylinder of the engine.

2. A starting-apparatus for internal combustion engines oonfiprisinp,` ya fuel tank, a oarburetter independent from the earburetter of the engine and in communieation With said fuel tank, means for setopping the flowing of the fuel into the caibure-tter, a pump, means embodying an inlet valve for Connecting the pump to the earburetter, a container for Compressed carburetter air, means embodying` an outlet valve for connesting the pump to said container, a delivery tube connecting ysaid container to the.

Cylinders of the engine and a discharge valve placed on this tube.

3. A starting apparatus for internal combustion engines comprising a fuel tank, ar

buretter, a container for compressed car` buretted air, means embodying an outlet valve for connecting` the pump to the said Container and delivery means embodying a discharge valve on said container. p

4l. A starting apparatus for internal combustion engines comprising a fuel tank, a earburetter in communication With said fuel tank, a pump, means embodying` an inlet valve for Connecting the pump to the earburetter, a container for compressed care buretted air, means embodying` an oulet valve for connecting the pump to thesaid Container, means on the pump for admitting additional air into the same at the end of the suction stroke and delivery means embodying a discharge valve on said container.

.ln testimony whereof l have signed my name to this specification.

EMILE PAUL DUMANOIS. 

